U.S. Sens. Patty Murray and Maria Cantwell want to know what happened to the vanished website, and have asked Education Secretary DeVos to put it back up.

The website was set up under President George W. Bush so educators, advocates and parents could get a “one-stop” explanation on the federal Individuals with Disabilities Act (IDEA), as well as know their rights under the disability law.

The resource has been inexplicably taken away. In a letter to DeVos — whose confirmation both senators vocally opposed — Cantwell and Murray explained:

“We are deeply concerned that prior to your confirmation and arrival at the Department, the centralized resource website for the IDEA became inaccessible to the public for more than a week, and is now redirecting people to a site for the Office of Special Education Programs.

The new website “lacks much of the information previously available,” the senators wrote.

“The Department’s failure to keep this critical resource operational makes it harder for parents, educators and administrators to find the resources they need to implement this federal law and protect the rights of children with disabilities,” the senators told DeVos.

DeVos was confirmed in a 51-50 Senate vote on Tuesday, with Vice President Mike Pence brought in to cast the tie-breaking vote.